From cf31735622f2227c6814ddb6676196cec6a94aec Mon Sep 17 00:00:00 2001
From: Dmitry Batkovich <dmitry.batkovich@jetbrains.com>
Date: Thu, 13 Jun 2019 15:09:06 +0300
Subject: [PATCH] use only meaningful bytes to calculate stub hash

GitOrigin-RevId: 008bb90612d555bcacbe9d5f164dd26be29f23c0
---
 .../src/com/intellij/psi/stubs/SerializedStubTree.java      | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/psi/stubs/SerializedStubTree.java b/platform/lang-impl/src/com/intellij/psi/stubs/SerializedStubTree.java
index cb2b93558ff4..5ad3e4d1a5c0 100644
--- a/platform/lang-impl/src/com/intellij/psi/stubs/SerializedStubTree.java
+++ b/platform/lang-impl/src/com/intellij/psi/stubs/SerializedStubTree.java
@@ -120,7 +120,7 @@ public class SerializedStubTree {
       }
     }
 
-    myIndexedStubs = new IndexedStubs(calculateHash(myBytes), (Map)map);
+    myIndexedStubs = new IndexedStubs(calculateHash(myBytes, myLength), (Map)map);
   }
 
   @NotNull
@@ -180,9 +180,9 @@ public class SerializedStubTree {
   }
 
   @NotNull
-  private static byte[] calculateHash(@NotNull byte[] content) {
+  private static byte[] calculateHash(@NotNull byte[] content, int length) {
     MessageDigest digest = HASHER.getValue();
-    digest.update(content);
+    digest.update(content, 0, length);
     return digest.digest();
   }